ACCO Brands director granted 5,127.2 RSUs

ACCO director E. Mark Rajkowski received a deferred equity award of 5,127.2 RSUs tied to future delivery of common stock.

Rhea-AI Filing Summary

ACCO BRANDS Corp (symbol: ACCO) is the issuer of record for a Form 4 filing submitted to the SEC. RAJKOWSKI E MARK reported acquisition or exercise transactions in this Form 4 filing.

ACCO BRANDS Corp (ACCO) reported that director E. Mark Rajkowski received a grant of 5,127.2 Restricted Stock Units (RSUs) on September 9, 2026 under the company’s Incentive Plan. These RSUs are deferred under the Deferred Compensation Plan for Non-Employee Directors and each RSU represents one share of common stock payable upon death, disability, or when Board service ends, bringing his directly held RSUs to 300,451.

Insider Trade Summary

Grant/Award: 5,127.2 shares

Grant/Award 1 txn

Insider RAJKOWSKI E MARK

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Units F1	5,127.2	$0.00	$0.00

Holdings After Transaction: Restricted Stock Units — 300,451 contracts (Direct)

Footnotes (1)

1. F1. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. RSUs are immediately vested or vest on the one year anniversary of the grant date, but in either case, have been deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors. Each RSU represents the right to receive one share of the Issuer's common stock upon the earlier of the date of the reporting person's death or disability, or cessation of service as a member of the Board of Directors.

Key Figures

RSUs granted: 5,127.2 units RSU holdings after transaction: 300,451 units Transaction price per RSU: $0.00 per unit +2 more

5 metrics

RSUs granted 5,127.2 units Restricted Stock Units granted to director on September 9, 2026

RSU holdings after transaction 300,451 units Total Restricted Stock Units directly held by the director after the grant

Transaction price per RSU $0.00 per unit Reported transaction price per share for the RSU grant

Conversion or exercise price $0.00 per unit Reported conversion or exercise price for the RSUs

Rule 10b5-1 plan status Not affirmed Document-level 10b5-1 checkbox set to false for this Form 4

Key Terms

Restricted Stock Units, Incentive Plan, Deferred Compensation Plan for Non-Employee Directors, cessation of service, +1 more

5 terms

Restricted Stock Units financial

"Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Incentive Plan financial

"RSUs granted under the Issuer's Incentive Plan"

Deferred Compensation Plan for Non-Employee Directors financial

"deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors"

cessation of service regulatory

"upon the earlier of the date of the reporting person's death or disability, or cessation of service"

Board of Directors regulatory

"cessation of service as a member of the Board of Directors"

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

FAQ

What insider transaction did ACCO (ACCO BRANDS Corp) report for E. Mark Rajkowski?

The company reported that director E. Mark Rajkowski received a grant of 5,127.2 Restricted Stock Units on September 9, 2026 as a grant, award, or other acquisition under the issuer’s Incentive Plan.

How many ACCO RSUs does E. Mark Rajkowski hold after this Form 4 transaction?

After the September 9, 2026 grant, E. Mark Rajkowski holds a total of 300,451 Restricted Stock Units directly, each representing the right to receive one share of ACCO BRANDS Corp common stock under the terms disclosed.

What are the vesting and payment conditions for the new ACCO RSU grant?

The 5,127.2 RSUs either vest immediately or on the one-year anniversary of the grant date and have been deferred under the Deferred Compensation Plan for Non-Employee Directors, paying one share of common stock per RSU upon death, disability, or cessation of Board service.

Was the ACCO RSU grant to E. Mark Rajkowski made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not affirmed (set to false), and there is no footnote stating that the grant was made pursuant to a Rule 10b5-1 or similar pre-arranged trading plan.

What price per share is associated with the ACCO RSUs granted to E. Mark Rajkowski?

The Form 4 reports a transaction price per share of $0.00 and a conversion or exercise price of $0.00 for the 5,127.2 Restricted Stock Units, consistent with a director equity award rather than an open-market purchase.

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Available on EDGAR 09/10/2026 - 03:22 PM Accepted by SEC EDGAR 09/10/2026 - 03:21 PM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

RAJKOWSKI E MARK

(Last) (First) (Middle)

C/O ACCO BRANDS CORPORATION

(Street)

LAKE ZURICH ILLINOIS 60047

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ACCO BRANDS Corp [ ACCO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/09/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	$0	09/09/2026		A		5,127.2		(1)	(1)	Common Stock	5,127.2	$0	300,451	D

Explanation of Responses:

1. Restricted Stock Units (RSUs) granted under the Issuer's Incentive Plan. RSUs are immediately vested or vest on the one year anniversary of the grant date, but in either case, have been deferred under the Issuer's Deferred Compensation Plan for Non-Employee Directors. Each RSU represents the right to receive one share of the Issuer's common stock upon the earlier of the date of the reporting person's death or disability, or cessation of service as a member of the Board of Directors.

	/s/ Kathryn D. Ingraham, Attorney-in-fact for E. Mark Rajkowski	09/10/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)